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MBVLSI-168 (V.2)

DTK COMPUTER, INC.

MBVLSI-168 (V.2)

Processor

80286

Processor Speed

8/12MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

4MB

Maximum Video Memory

None

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

JP1

Turbo switch

JP4

Power LED & keylock

JP2

Turbo LED

JP5

Speaker

JP3

External battery

JP17

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter (100ns memory)

JP6

Pins 1 & 2 closed

 

Wait state select 0 wait states

JP10

Closed

 

Wait state select 1 wait state

JP10

Open

 

BIOS type select 27256

JP11

Closed

 

BIOS type select 27128

JP11

Open

 

Monitor type select color

JP12

Closed

 

Monitor type select monochrome

JP12

Open

Power good signal detect from board

JP16

Pins 1 & 2 closed

 

Power good signal detect from power supply

JP16

Pins 2 & 3 closed

DRAM CONFIGURATION 1

Size

Bank 0A

Parity 0

Bank 0B

Parity 1

512KB

(4) 44256

(2) 41256

None

None

1MB

(4) 44256

(2) 41256

(4) 44256

(2) 41256

DRAM JUMPER CONFIGURATION 1

Size

JP7

JP8

JP9

512KB

Closed

Closed

Closed

1MB

Closed

Open

Closed

DRAM CONFIGURATION 2

Size

Bank 0

Parity 0

Bank 1

Parity 1

512KB

(16) 41256

(2) 41256

None

None

640KB

(16) 41256

(2) 41256

(16) 4164

(2) 4164

1MB

(16) 41256

(2) 41256

(16) 41256

(2) 41256

2MB

(16) 411000

(2) 411000

None

None

4MB

(16) 411000

(2) 411000

(16) 411000

(2) 411000

DRAM JUMPER CONFIGURATION 2

Size

JP7

JP8

JP9

512KB

Closed

Closed

Closed

640KB

Closed

Closed

Open

1MB

Closed

Open

Closed

2MB

Closed

Open

Open

4MB

Open

Closed

Closed

DRAM CONFIGURATION 3

Size

Bank 2

Bank 3

512KB

(2) 256K x 9

None

1MB

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

None

4MB

(2) 1M x 9

(2) 1M x 9

DRAM JUMPER CONFIGURATION 3

Size

JP7

JP8

JP9

512KB

Closed

Closed

Closed

1MB

Closed

Open

Closed

2MB

Closed

Open

Open

4MB

Open

Closed

Closed

KEYBOARD BIOS PIN SELECTION

Setting

JP13

JP14

JP15

JP18

Pin 23

Open

Closed

Open

Open

Pin 27

Open

Open

Closed

Open

Pin 30

Closed

Open

Open

Open

Pin 32

Open

Open

Open

Closed